Firstly bought a 16GB pen drive that was only 8GB even though the packaging and the printing on the device itself both clearly said 16GB.

Secondly the pen drive one day randomly made itself "write protected," meaning it is not possible to copy or remove files to or from the device, and no amount of tinkering and googling could solve it rendering the device entirely useless.

An absolute waste of money with nothing but problems from day one. I would not recommend this device to anyone. You have been warned!